Variations in species-specific nutrient-associated processes
The nutrient absorption potentials of absorptive roots were 0.23 g
cm-1 for N (CV =
64%) and 0.10 g cm-1 for P (CV = 80%) among the 15
woody species (Table 1), respectively. The values of nutrient absorption
potential had significant differences only in P element between AM
(0.29 g cm-1 for
NAP; 0.14 g cm-1 for PAP) and ECM (0.15 g
cm-1 for NAP; 0.05 g cm-1 for PAP)
species (Table 1; Fig. S1). The average resorption efficiencies were
41% for N (CV = 29%) and 48% (CV = 23%) for P across the 15 woody
species (Table 1). Arbuscular mycorrhizal species (48% for NRE and 50%
for PRE) exhibited significantly higher resorption efficiencies of leaf
N but not P than ECM species (32% for NRE and 46% for PRE) (Table 1;
Fig. S1). There were no significant differences in leaf N and P
resorption proficiencies between AM (10.5 mg g-1 for
leaf-litter N concentration and 0.6 mg g-1 for
leaf-litter P concentration) and ECM (13.5 mg g-1 for
leaf-litter N concentration and 0.6 mg g-1 for
leaf-litter P concentration) species (P > 0.05,
Table 1; Fig. S1). The mass loss of leaf litter after 12-wk
decomposition ranged from 17% for C. lanceolata to 35% forQ. fabri (CV = 20%, Table 1). Similar to the patterns in
nutrient absorption potentials and resorption proficiencies, mass loss
was not significantly different between AM (24%) and ECM (28%) species
(P > 0.05, Table 1; Fig. S1).